Poster Session

Poster Session I (4pm-6pm CDT)

4:00 pm – 6:00 pm, Tuesday June 4 // Session D00

Topics:

Challenges of Actualizing a 25-level Zeeman Trapped Ion Qudit

Poster 86

Presenter: Pei Jiang Low (University of Waterloo)

Authors: Nicholas Zutt (University of Waterloo), Gaurav Ashish (University of Waterloo), Crystal Senko (UWaterloo)

The abundant (meta)stable energy levels of ¹³⁷Ba⁺ makes it a natural trapped ion candidate for encoding many qudit levels, which is a venue for increasing the computational space of a quantum computer. The 6S_1/2 and 5D_5/2 energy orbitals of ¹³⁷Ba⁺ feature 32 independent electronic sublevels, and up to 25 levels can be encoded as a Zeeman qudit while preserving single-shot measurement readouts. In this poster presentation, we discuss our experimental progress with actualizing state preparation and coherent control of the internal energy states of a 25-level ¹³⁷Ba⁺ trapped ion qudit. The challenges that we have encountered, unique to high-level qudits and otherwise, are investigated in detail and presented in this poster.

Funding acknowledgement

We acknowledge support from the National Sciences and Engineering Research Council of Canada and the Canada First Research Excellence Fund.

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